Donald Trump seems to be unconcerned about the Russian aggression in Ukraine. By doing this he tells them that they can go ahead and do what they are doing. That is dangerous.

That sense of what happened in Europe in World War II has shaped a lot of my views.

The use of force to liberate people is very different from the use of force to suppress or control them, or even to defeat them.

The Western alliance should have supported the Sunni opposition against the Assad regime from the beginning. As far as Iraq is concerned, if it had stayed stable the way it was in 2008, IS would not have been able to expand in Iraq the way they did. The mistake was that Barack Obama withdrew the armed forces from Iraq too fast.

Look, I think the notion that theres a dogma or doctrine of foreign policy that gives you a textbook recipe for how to react to all situations is really nonsense.

The American people are pretty impressive in their ability to keep after something if they think it is doable.

I like globalization; I want to say it works, but it is hard to say that when six hundred million people are slipping backwards.